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Old 03-08-2004, 02:51 PM   #1
c-tenkid
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Join Date: Apr 2003
Location: Festus mo
Posts: 370
4wd quit working.

I have a 1990 chevy light duty 3/4 ton.It's a 2500 but''s it 6 lug has a 14 bolt rear.(Not sure what else is different than a 1/2 ton)

Anyway yesterday I was driving through my yard so I could get my car trailer.I had it in 4 high so it wouldn't tear the grass up.I got out to hook the trailer up and when I got back in the 4wd light wasn't on and it wasn't in 4wd anymore.Same thing today.


There is a wire under the front diff that sometimes comes dissconnected and it quits working but I checked it and it's still connected.I really don't know what else to check.

Anyone have any idea's.
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Old 03-09-2004, 07:27 PM   #2
IoWnZa
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Join Date: Sep 2003
Location: Ellsworth, ME.
Posts: 509
Sounds like the Actuator?

I don't know much about those damn fangled electronic part's, but I would check the Actuator, that is what went on my Dad's 97 K1500 back in the day.
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Old 03-10-2004, 06:23 PM   #3
c-tenkid
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Join Date: Apr 2003
Location: Festus mo
Posts: 370
Yeah I guess that's what it is.They have a kit in summit that makes it where you lock the front diff manually.So it's not electronic anymore.I guess I am gonna go that route.
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